Manned Spacecraft Center, Houston, TX. -- U.S. Navy UDT swimmer Lt. Clancy Hatleberg disinfects the biological isolation garments (BIGs) worn by Apollo 11 astronauts Neil A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. after they entered the decontamination raft during recovery operations today at the completion of their successful lunar landing mission. The astronauts donned the BIG suits just before egressing their spacecraft.